Hydrodeoxygenation of vanillin to 2-methoxy-4-methylphenol over carbon dots supported Pd catalyst

Review and Outlook on Regulation of Catalyst Activity, Selectivity, and Stability for Biomass Hydrodeoxygenation Reaction in an Aqueous Environment

“…When a strong polar solvent such as water was used, MMP selectivity was significantly increased, i.e., the higher solvent level favored hydrogenation of the lower polar substrate. Another study found that water promotes the hydrogenolysis of vanillyl alcohol into MMP and is the most suitable solvent for the HDO of vanillin . To develop exceptionally effective catalytic systems for vanillin conversion under mild conditions, by introducing different volumes of acetone to form defective carbon, the robust interplay between Pd and defective carbon facilitates hydrogen storage and substrate activation at low H 2 pressure and reaction temperature, thus enhancing hydrogenation and hydrogenolysis (Figure a).…”